In this study, seasonal variations of total fatty acid (FA), phospholipid (PL) and triacylglycerol (TAG) compositions in liver tissues catfish (Silurus triostegus) were investigated. Samples S. triostegus obtained from Atatürk Dam Lake, Turkey, two month periods during one year as May. The major components palmitic (16:0), stearic (18:0), oleic (18:1n-9), palmitoleic (16:1n-7), docosahexaenoic...

introduction: the regulation of the body fluid content (osmoregulation) of an aquatic animal, is performed by several organs. in fish, osmoregulatory mechanisms are based on the function of specialized cells (ionocytes) located in various tissues and organs including gills. na+, k+-atpase is one of the main osmoregulatory enzymes enabling the use of atp as a source of energy for ion transport t...